13000133303021 has 4 divisors (see below), whose sum is σ = 13000143895200. Its totient is φ = 13000122710844.

The previous prime is 13000133302903. The next prime is 13000133303063. The reversal of 13000133303021 is 12030333100031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13000133303021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13000133302984 and 13000133303002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13000133303821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3170801 + ... + 6004518.

It is an arithmetic number, because the mean of its divisors is an integer number (3250035973800).

Almost surely, 2^{13000133303021} is an apocalyptic number.

It is an amenable number.

13000133303021 is a deficient number, since it is larger than the sum of its proper divisors (10592179).

13000133303021 is an equidigital number, since it uses as much as digits as its factorization.

13000133303021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10592178.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 13000133303021 its reverse (12030333100031), we get a palindrome (25030466403052).

The spelling of 13000133303021 in words is "thirteen trillion, one hundred thirty-three million, three hundred three thousand, twenty-one".